Seems like most of the changes are just cleanups and a few minor continuity fixes. While that scene with Han and Jabba is still in ANH, the Jabba animation has been cleaned up and no longer looks like it was rendered on a PS2. Han still shoots last. :( At the end of ROTJ, (on the DSII, not Endor) Vader/Anakin is even paler and lacks eyebrows, making him look even more dead and giving him an appearance closer to Hayden's version of the man.

I ordered my copy from Amazon and right now it's somewhere between El Paso and Dallas. With some luck, maybe I'll get it tomorrow night.